Derek walked into the girl's locker room and placed a device in the locker. He had made a shrink ray in science class about a month ago, keeping it secret from the world. He had tested it on common household items, shrinking them to the size of a nickel. The items seemed to gain durability, because no matter how he tried he could not break a shrunken object. Derek had recently managed to grow an item back to its original size, leading him to start thinking about whether he could successfully shrink himself. He devised a way to do so in the form of a pill. Simply swallowing it would shrink him down to the size of a nickel, though he had yet to test it.
It didn't take long for Derek to start fantasizing about shrinking under the feet of his ex-girlfriend Sasha. Sasha was an attractive senior in high school who ran long distance on the track team. She had long, chestnut hair she tied into a ponytail. Sasha's curves accentuated her nimble movements, and she had a decent bust to match. Her green eyes ate him up, and she always had dark green nail polish on her hands and feet. Derek had confessed his love of feet to Sasha, something she took warmly to. She had let him worship her feet whenever he liked, whether that was right after she showered or just after a track meet when she was still soaked in sweat. Derek thought her feet were beautiful and encouraged her to maintain her dark green nail polish on her toes. After the first week of track, Derek convinced Sasha to stop wearing socks in her running shoes. He loved the way her feet smelled and enjoyed licking her sweaty feet, and while her were plenty soaked in sweat, he wanted to worship her feet after she exercised without socks in the running shoes she's had since freshmen year. At the time she felt weird about it, but after a few days of no socks she began to enjoy feeling her foot sweat squish under her soles.
After they broke up, Derek craved the smell and taste of her feet. After he made his shrink ray, he began daydreaming about being trampled by Sasha's feet. He planned an excursion to the girl's locker room during the final period of class, setting course to crawl into his ex's locker and lay in her shoes. However, he didn't want to be stuck in her running shoe when she put them on for track practice. Now that he had finally grew something back to size, he made the final part of his plan to escape her shoe and get out of the girl's locker room before the day ended.
Derek now stood on the concrete bench attached to the wide metal meshed lockers. The base of Sasha's locker sat in front of the bench, something he could reach easily after shrinking. Sasha's black and white running shoes she's had since freshman year were sitting just past the metal gate. Derek looked at the shoes as he swallowed the pill, his thoughts tunnel visioned on smelling his ex's shoes. A horrible twisting sensation came over him and his vision blurred. He lost his balance and fell over, feeling nauseous. Derek felt himself hit the ground. He curled into a fetal position and hugged himself until the pain had faded away. Derek fought the urge to puke, instead focusing his thoughts on Sasha's shoes. As his vision returned and his head stopped pounding, Derek hoped this would all be worth it.
He began to stand up, still dizzy from the hell he just experienced. His clothes were gone, though he only thought of that for just a second. Derek felt tears dried on his face while he began stumbling forwards, reaching the gate as his nausea faded away. He reached his arms through the metal, pulling himself up and over the lip. Before him were Sasha's black and white, four-year-old running shoes that had been used on her daily runs and almost every day in gym class. They looked ragged and beat up, having filth coating the fabric. Derek bent down to look under the curved toe section, noting the visible footprint. A powerful stench wafted from the openings of the shoe, enticing Derek. He walked to the side of the shoe, determining the best way to climb the dirty fabric. As he reached his hands out and began climbing the side, he remembered Sasha telling him that the shoes had been designed to look as though the let the air vent out of the shoe, but in reality the solid walls of the shoe trapped the sweat and smell in her shoes until she took them off. At the time, she had giggled about how hot her feet were because of it before letting him lick the sweat off her feet.
He reached the top of the shoe and stood on the laces. The black maw of the 4-year-old gym shoe called to him. A vinegary, cheesy smell dominated his nose, and Derek forgot about everything as he scaled down onto the heel. He sank into the insole slightly, sweat bubbling under him. The odor of Sasha's sweaty, unwashed feet smothered his nose. Derek, now firmly erect, looked into the darkness of the shoe. He could clearly distinguish a grayed, sweat caked footprint on the insole. The shoe had molded to his ex's foot, bowing down at the heel, arch, ball of the foot, and toes. Derek lasered his attention on the toe spots and began walking into the darkness. He walked along the footprint, and Sasha's foot sweat from years of gym class and track squished under his every step. As he got closer and closer to the toe section, the smell got more intense, reaching a point where Derek felt compelled to stop. Yet as he stood still, Derek decided that he wanted to experience the worst Sasha's heavily used gym shoes had to offer.
He trudged on, reaching where the ball of her foot lies. The overwhelming stench him and made Derek light-headed as he finally reached the toe section. He took a deep breath of the rotten cheese, vinegar coated odor and immediately gagged. Derek began walking backwards towards the heel once more, hoping to get away from the nauseating smell. Yet, the sweat coating the insole had lubricated the bottoms of his feet, causing him to slip and faceplant on the imprint of ball of his ex's foot. Sweat rushed out at the impact, coating Sasha's foot sweat across his naked body and forcing the salty substance into his mouth. His body sank into the insole, drowning his face in a shallow pool of his ex's salty sweat.